Customizer doesn't save changes in CSS

For example:
in customize.php

$wp_customize->add_setting('element_show', array(
    'transport' => 'postMessage'
));
$wp_customize->add_control('element_show', array(
    'type' => 'checkbox',
    'label' => __('Hide element', 'wpt'),
    'section' => 'general options',
    'priority' => 1
));

in customize.js

wp.customize('element_show', function(value) {
    value.bind(function(to) {
        if('1' == to) {
            $('#element').css({
	        'display': 'none'
	    });
        } else {
	    $('#element').css({
	        'display': 'block'
	    });
	}
    });
});

I can see the changes in live preview, but When I refresh the page it doesn’t save the changes in CSS. Same goes for .addClass() and .removeClass().